3D Surface Wedge Analysis for Slopes
3D Surface Wedge Analysis for Slopes
Swedge is a quick, interactive and simple to use analysis tool for evaluating the geometry and stability of surface wedges in rock slopes. Wedges are defined by two intersecting discontinuity planes, the slope surface and an optional tension crack. Swedge provides an integrated graphical environment for fast, easy data entry and 3D model visualization.
Swedge 5.0 offers an extensive array of analysis options including Deterministic, Probabilistic, Combinations, Sensitivity, and Persistence analysis.
For a Deterministic analysis, Swedge computes the factor of safety for a specific wedge. For a Probabilistic analysis, statistical input data can be entered to account for uncertainty in joint orientation, strength and other parameters, and a probability of failure is calculated. For a Combination analysis, any number of joint planes can be defined, and Swedge will compute all possible combinations of joint intersections which can form a wedge.
Rock bolts, shotcrete or support pressure can be applied to increase the wedge safety factor. De-stabilizing forces due to water pressure, seismic loads or external forces can also be easily modeled. Joint shear strength options include Mohr-Coulomb, Barton-Bandis or Power Curve models, and a joint waviness angle can be defined.
Swedge 5.0 provides improved integration with the Dips program. A complete Dips file can be imported into Swedge and analyzed with the Combination analysis option; or statistical joint set information (Fisher Distribution) can be imported for a Probabilistic analysis.
Dips is a program for the graphical and statistical analysis of structural geology data using stereonet.
RocPlane is an interactive software tool for performing planar rock slope stability analysis and design. RocPlane makes it easy to quickly create planar models, visualize them in both 2D and 3D, and evaluate analysis results. RocPlane contains many helpful features that allow users to rapidly build, modify and run models.
RocPlane also includes functionalities for easily analyzing results, generating figures and charts, and producing convenient summaries of models and results. The report generation features of RocPlane are especially useful to engineers when writing reports with high-quality, and professional-looking drawings and diagrams. They help slope designers to readily communicate findings to people with varying slope engineering knowledge.
Unwedge is a 3D stability analysis and visualization program for underground excavations in rock containing intersecting structural discontinuities. Safety factors are calculated for potentially unstable wedges and support requirements can be modeled using various types of pattern and spot bolting and shotcrete. Use Unwedge to quickly create a model, perform a safety factor analysis, place reinforcement and interpret the results.
Unwedge's Windows-based interface provides an easy to use, graphical environment for data entry and visualization that greatly simplifies the analysis and design process. Popup windows allow for easy entry and modification of model parameters, and easy to use editing tools provide a convenient method for performing parametric studies. The graphical data interpreter provides a rich set of tools, including 3D animation, for the convenient display of wedges surrounding the excavation.
In addition to allowing for simple point and click geometry input/editing, Unwedge provides enhanced support models for bolts, shotcrete and support pressures, the ability to optimize tunnel orientation and an option to look at different combinations of three joint sets based on a list of more than three joint sets. Unwedge uses a new analysis engine based on Goodman and Shi's block theory, which includes the ability to incorporate induced stress around the excavation and the effect on stability, new strength models such as Barton-Bandis and Power Curve, and the ability to improve the scaling and sizing of wedges.
Dips is designed for the interactive analysis of orientation based geological data. The program is capable of many applications and is designed for the novice or occasional user, and for the accomplished user of stereographic projection who wishes to utilize more advanced tools in the analysis of geological data.
Dips allows the user to analyze and visualize structural data following the same techniques used in manual stereonets. In addition, it has many computational features, such as statistical contouring of orientation clustering (illustrated below), mean orientation and confidence calculation, cluster variability, and qualitative and quantitative feature attribute analysis.
Dips is designed for the analysis of features related to the engineering analysis of rock structures, however, the free format of the Dips data file permits the analysis of any orientation-based data.
RocFall is a statistical analysis program designed to assist with assessment of slopes at risk for rockfalls. Energy, velocity and "bounce height" envelopes for the entire slope are determined by the program, as is the location of rock endpoints. Distributions of energy, velocity and bounce-height are also calculated along the slope profile; Distributions can be graphed and comprehensive statistics are automatically calculated.
RocFall can also assist in determining remedial measures: the material properties of each slope segment can be changed allowing for comparison of results. Information about the kinetic energy and location of impact on a barrier can help determine the capacity, size and location of barriers. RocFall provides various ways of interacting with other Windows programs. All input and output data (formatted in tabular form) and screen captures, can be "pasted" into a word processor for speedy report writing. RocFall also allows "raw" data (e.g. the impact location on a barrier) to be "pasted" into a spreadsheet for more detailed analysis. (e.g. determining what fraction of the impact locations were above a certain height or fitting a probability distribution to the data).
To assist with determining coefficients of restitution, RocFall 4.0 now includes a large table of coefficients of restitution that was compiled after an extensive literature search. RocFall also provides a Material Wizard that uses statistics to determine the coefficient of restitution (RN) for a material, based on the back-calculation of rock endpoints. Rock paths can be filtered. (e.g. you can right-click on a barrier and select, from the many impacts on the barrier, 10 paths that had the highest velocity when they contacted the barrier).
RocFall 4.0 now allows you to create faster and easier high quality output. Printing and margins are improved, as is the quality of the printed graphs. Graphs can be exported to Excel with 1-click and the slope and rock-paths can easily be exported to a DXF file for import into a CAD program. The Drawing toolkit has been improved to include importing of bitmap files, multi-line text-boxes that can be auto-filled with relevant simulation data, axes that can be dragged-and-dropped to show coordinates on a printed page and much more.